12
VHF is the more common for tv channels, you are probably thinking UHF
The VHF channels go from 2 to 13, so there are 12 of them. So, 19 + 12 = 31.
Twelve channels.
12
Eleven TV channels are in the VHF spectrum. My count is 12 in the USA (2 -13).
There are 12 channels. They are channel 2 through channel 13.
The uniden smh 400d has 36 channels
12
of course its 12 channels...it's obvious!
There is a possibility of 12 but you will never find all the channels filled even in large markets. Cable is the exception.
Try a regular off air UHF/VHF antenna which cover channels 2 thru 69. while there are a few VHF stations (channels 2-13) still on the air most are UHF (channels 14-69) and are HDTV. This info applies to stations in the USA.